1)
The fraternal twin spawn of Applejack and Rainbow Dash. I don't have names for the two of them, but I had a very good idea as to how I'd handle their designs. The male I made to look like my version of AJ's father ('cause I wanted AJ to look at her son and think "he looks just like Pa" 'cause I though that'd be kinda cute), and the female I made to look more like a mix between AJ and RD, color-wise and facial structure wise. The mare has a prosthetic wing for her right side due to her losing the real limb in a terrible accident a few years ago.

2)
The son of Pinkie Pie and Fluttershy. I wanted him big and round and fluffy with long hair, but he's also the most simple in terms of design. Still no name, although I'm kinda thinking Berry Punch for this fella. The blond comes from Fluttershy's side of the family though. x3

3)
The daughter of my all-time favorite ship: RariTwi! I had a blast designing her, especially her coat color; really wanted to have a paint pony to the roster, and Twi's and Rarity's colors go pretty well together. I debated giving her wings too, but ultimately I decided against it. But that might change at some point… I dunno. >.>

4)
The cub of Discord and Celestia, one of the ships I actually include in my headcanon. As such, this character might actually become… err, "canon", to my headcanon. I wanted something that was kinda chaotic like Discord yet still keeping some sort of uniform and pristine-ness like Celestia, and they're what I came up with. I was originally gonna not have them have a lion's mane, but due to both genders of lions being able to grow them, I decided to go ahead and do it anyway. I'm glad I did! :3 This character is Agender, or they don't generally identify with a gender. I'm highly considering naming them "Vega", but I dunno yet. :/

5)
The son of Sweetie Belle and Spike; I'm on the fence as to whether make this one "canon" or not to my headcanon. That's mostly because I personally don't care for Sparity (and have headcanoned Spike growing out of his crush on Rarebear) and partly because I think Spike and Sweetie are pretty cute together. I wanted this character to look more dragon than pony, and despite my initial thought that Sweetie's and Spike's coloring may not work too well…. I think it actually came out okay. Still no ideas for a name for this fella though. :C